Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 562 [Rate centres in NPA 562] [Dial plan for NPA 562]

NXX: 284

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
562-284 A Alamitos CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730      
562-284 0 Alamitos CA   6529 T-MOBILE USA, INC. 730   2024-04-24   
562-284 1 Alamitos CA   899D METROPCS NETWORKS, LLC 730   2014-10-09   
562-284 2 Alamitos CA   649C ONVOY, LLC - CA 730   2014-10-03   
562-284 3 Alamitos CA   899D METROPCS NETWORKS, LLC 730   2017-08-12   
562-284 4 Alamitos CA   318J COMCAST IP PHONE, LLC 730   2011-04-23   
562-284 5 Alamitos CA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 730   2014-06-05   
562-284 6 Alamitos CA   6529 T-MOBILE USA, INC. 730   2014-09-04   
562-284 7 Alamitos CA   6529 T-MOBILE USA, INC. 730   2010-06-25   
562-284 8 Alamitos CA   899D METROPCS NETWORKS, LLC 730   2014-08-26   
562-284 9 Alamitos CA   6529 T-MOBILE USA, INC. 730   2012-01-24   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.